Product Review

Quality Park #9 Double-Window Security Envelopes are perfect for quick invoicing and billing. Redi-Seal envelope design keeps adhesives from sticking prematurely—just raise the bottom flap and press to seal. Double-window format displays sender and receiver addresses for statements and invoices. Opaque envelopes have a tint and security pattern that makes them difficult to read through, keeping sensitive contents secure. Essential for bulk mailings, payroll and billing cycles.#9 Double-window invoice envelopes. Self sealing. 24 lb White wove paper. 3-7/8" x 8-7/8". 500 Per box.FASTER WAY TO FOLD, STUFF & SEAL: Your time is too valuable to spend licking envelopes. Self-sealing closures work without moisture to get invoices out on time.PATENTED TO PREVENT WASTE: Redi-Seal envelopes have folded flaps that won't stick prematurely—raise the bottom flap in place, press and seal.PROFESSIONAL BUSINESS FORMAT: Double windows reveal sender and receiver addresses to fit common invoices and statements. Made with modern side-seam construction in crisp, bright white.ENHANCED PRIVACY PROTECTIONS: A security tint with complex pattern obscures letters and numbers, even when held to light.ELMINATE YUCK FOR LESS: Goodbye drippy moistener sponges! Redi-Seal envelopes offer an affordable self-sealing alternative to standard envelopes.STOCK-UP BOXES: Office-friendly 500-envelope quantity keeps necessary supplies on hand for high-volume mailings.